.cen_container {
  height: 100%;
  width: 960px;
  margin: 0 auto;
}
.container {
  width: 960px;
  height: 1600px;
  background-color: #fff;
  margin-right: auto;
  margin-left: auto;
  margin-top: -80px;
}
.left {
  float: left;
}
.right {
  float: right;
}
.active {
  background-color: blue;
}
.top_nav {
  width: 100%;
  height: 80px;
  background: #FFFFFF;
}
.top_nav .logo {
  margin-top: 10px;
  height: 60px;
  position: relative;
  float: left;
}
.top_nav .logo img {
  height: 60px;
}
.top_nav .nav_list {
  height: 80px;
  width: 400px;
  position: relative;
  float: right;
}
.top_nav .nav_list li {
  position: relative;
  float: left;
  height: 36px;
  width: 80px;
  margin-top: 22px;
}
.top_nav .nav_list li a {
  display: block;
  height: 100%;
  margin: 0 6px;
  text-align: center;
  line-height: 36px;
  font-size: 16px;
  color: #BDC3C7;
  text-decoration: none;
  font-family: "΢���ź�";
  letter-spacing: 4px;
  border-radius: 4px;
}
.top_nav .nav_list li a:hover {
  background-color: blue;
}
.top_div {
  height: 220px;
  width: 100%;
  background-image: url("../images/bg.jpg");
  filter: "progid:DXImageTransform.Microsoft.AlphaImageLoader(sizingMethod='scale')";
  -moz-background-size: 100% 100%;
  background-size: 100% 100%;
  background-repeat: no-repeat;
}
.top_div .welcome {
  height: 72px;
  position: relative;
  float: left;
  margin-top: 36px;
}
.top_div .welcome a {
  display: block;
  height: 40px;
}
.top_div .welcome img {
  display: block;
  float: left;
  height: 40px;
}
.top_div .welcome p,
.top_div .welcome span {
  color: #BDC3C7;
  line-height: 15px;
}
.top_div .welcome p {
  line-height: 40px;
  font-size: 16px;
  margin-bottom: 10px;
  font-family: "΢���ź�";
}
.top_div .welcome span {
  text-indent: 40px;
  float: left;
  margin-top: 8px;
}
.cen_div {
  width: 100%;
  height: 1550px;
  background-color: #33495D;
}
.cen_div .left_container {
  width: 672px;
  height: 100%;
}
.cen_div .left_container .l_aritial {
  height: 500px;
  width: 100%;
}
.cen_div .left_container .l_aritial img {
  display: block;
  width: 612px;
  height: 320px;
  margin-left: 30px;
  margin-top: 30px;
}
.cen_div .left_container .l_aritial .aritical_txt {
  width: 602px;
  height: 150px;
  margin-top: 10px;
  margin-left: 40px;
}
.cen_div .left_container .l_aritial .aritical_txt h1 {
  font-family: "΢���ź�";
  text-indent: 10px;
}
.cen_div .left_container .l_aritial .aritical_txt p {
  text-indent: 10px;
  color: #A1A8AF;
  font-family: "΢���ź�";
  font-size: 12px;
  line-height: 20px;
}
.cen_div .left_container .l_aritial .readmore {
  background-color: blue;
  height: 30px;
  width: 60px;
  border-radius: 4px;
  margin-top: 10px;
}
.cen_div .left_container .l_aritial .readmore a {
  line-height: 30px;
  display: inline-block;
  width: 60px;
  text-align: center;
  font-size: 12px;
  color: white;
  color: #BDC3C7;
  text-decoration: none;
  font-family: "΢���ź�";
}
.cen_div .left_container .l_num {
  width: 100%;
  height: 100px;
  margin-bottom: 0;
}
.cen_div .left_container .l_num div {
  height: 50px;
  width: 90%;
  margin: 25px auto;
}
.cen_div .left_container .l_num div li {
  height: 46px;
  width: 46px;
  background: #ECF0F1;
  float: left;
  margin-right: 4px;
  border-radius: 4px;
  list-style-type: none;
  line-height: 46px;
  text-align: center;
  font-size: 14px;
}
.cen_div .left_container .l_num div li:hover {
  background-color: #1ABC9C;
}
.cen_div .left_container .l_num div li img {
  width: 46px;
  height: 46px;
}
.cen_div .left_container .l_num div .l_num_l {
  width: 250px;
  height: 50px;
  float: left;
  margin-top: 0;
}
.cen_div .left_container .l_num div .l_num_r {
  margin-top: 0;
  width: 100px;
  height: 50px;
  float: right;
}
.but_div {
  height: 300px;
  background-color: #fff;
  width: 100%;
}
.but_div .but_nav {
  position: relative;
  height: 300px;
  width: 240px;
  float: left;
  padding-top: 40px;
}
.but_div .but_nav p {
  color: #BDC3C7;
  font-family: "΢���ź�";
  font-size: 14px;
  font-weight: bold;
}
.min_top_div {
  height: 140px;
  width: 100%;
  background-image: url("../images/bg.jpg");
  filter: "progid:DXImageTransform.Microsoft.AlphaImageLoader(sizingMethod='scale')";
  -moz-background-size: 100% 100%;
  background-size: 100% 100%;
  background-repeat: no-repeat;
}
article {
  font-size: 16px;
  /*������С*/
  text-indent: 2em;
  /*��������������λ*/
  line-height: 1.5em;
  /*�о�Ϊ1.5����λ*/
  padding: 10px;
  /*���ڱ߾��������߾������öμ���*/
  margin: 0;
  /*ȥ��Ĭ�ϵĶμ���*/
}